Home solar power systems

The sun is a remarkable source of renewable energy. Solar power is produced when radiant light or heat from the sun is captured and used to provide electricity or heat for homes and businesses. Turning the sun’s energy into power can be done in several ways. For generating electricity, the most-used technology is photovoltaic (PV) cells or solar cells.

Solar cells held together within a frame and under protective glass create a solar module (often referred to as a solar panel). When several solar modules are connected, it is called a solar array.

Solar arrays are usually installed where they will receive the most direct sunlight, typically on the roof of a home or an unobstructed area on the ground. Shadows cast from trees, nearby homes and buildings or other structures can impact the effectiveness of a solar array, as can the angle or pitch at which modules are installed.

When a home solar array generates power, it is called micro-generation. Micro-​generation also includes how a household is credited for excess solar power that is sent back to the grid.

 

Components of home solar power systems

In its simplest form, a home solar power system includes a solar array, inverter and bi-directional meter. These components help capture the sun’s power, convert it into electricity for the home and measure how much energy is travelling to and from the grid.